On Wed, Jan 23, 2008 at 02:06:43PM -0800, Andrew Morton wrote:
> > On Mon, 21 Jan 2008 18:53:18 +0100 "Miguel Ojeda" <maxextreme@xxxxxxxxx> wrote:
> > Booting 2.6.24-rc8 I get this:
> >
> >
> > sysfs: duplicate filename 'fan' can not be created
> > WARNING: at fs/sysfs/dir.c:424 sysfs_add_one()
> > Pid: 819, comm: modprobe Not tainted 2.6.24-rc8 #2
> > [<c01b18ff>] sysfs_add_one+0x9f/0xe0
> > [<c01b1e38>] create_dir+0x48/0x90
> > [<c01b1ea9>] sysfs_create_dir+0x29/0x50
> > [<c024873f>] kobject_get+0xf/0x20
> > [<c0248bff>] kobject_add+0x8f/0x1b0
> > [<c0248db1>] kobject_register+0x21/0x50
> > [<c02dc6f1>] bus_add_driver+0x71/0x1e0
> > [<f886402f>] acpi_fan_init+0x2f/0x4d [fan]
> > [<c0148986>] sys_init_module+0x126/0x19b0
> > [<c024af87>] rb_insert_color+0xb7/0xe0
> > [<c029dc8d>] acpi_bus_register_driver+0x0/0x38
> > [<c0104286>] syscall_call+0x7/0xb
> > =======================
> > kobject_add failed for fan with -EEXIST, don't try to register things
> > with the same name in the same directory.
> > Pid: 819, comm: modprobe Not tainted 2.6.24-rc8 #2
> > [<c0248c81>] kobject_add+0x111/0x1b0
> > [<c0248db1>] kobject_register+0x21/0x50
> > [<c02dc6f1>] bus_add_driver+0x71/0x1e0
> > [<f886402f>] acpi_fan_init+0x2f/0x4d [fan]
> > [<c0148986>] sys_init_module+0x126/0x19b0
> > [<c024af87>] rb_insert_color+0xb7/0xe0
> > [<c029dc8d>] acpi_bus_register_driver+0x0/0x38
> > [<c0104286>] syscall_call+0x7/0xb
> > =======================
> > processor: exports duplicate symbol acpi_processor_set_thermal_limit
> > (owned by kernel)
> >
Could apply following debug patch and see the result?
diff -upr linux/fs/sysfs/dir.c linux.new/fs/sysfs/dir.c
--- linux/fs/sysfs/dir.c 2008-01-23 09:56:24.000000000 +0800
+++ linux.new/fs/sysfs/dir.c 2008-01-23 09:59:12.000000000 +0800
@@ -418,6 +418,8 @@ void sysfs_addrm_start(struct sysfs_addr
*/
int sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd)
{
+ if (!strcmp(sd->s_name, "fan"))
+ dump_stack();
if (sysfs_find_dirent(acxt->parent_sd, sd->s_name)) {
printk(KERN_WARNING "sysfs: duplicate filename '%s' "
"can not be created\n", sd->s_name);
-
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